ATE4503T1 - PROCESS FOR THE PREPARATION OF SUBSTITUTED ACETIC HYDRAZIDE. - Google Patents

PROCESS FOR THE PREPARATION OF SUBSTITUTED ACETIC HYDRAZIDE.

Info

Publication number
ATE4503T1
ATE4503T1 AT80200288T AT80200288T ATE4503T1 AT E4503 T1 ATE4503 T1 AT E4503T1 AT 80200288 T AT80200288 T AT 80200288T AT 80200288 T AT80200288 T AT 80200288T AT E4503 T1 ATE4503 T1 AT E4503T1
Authority
AT
Austria
Prior art keywords
formula
preparation
image
group
alkyl
Prior art date
Application number
AT80200288T
Other languages
German (de)
Inventor
Winfried Dr. Orth
Fritz Walter Lange
Werner Dr. Fickert
Original Assignee
Ruetgerswerke Aktiengesellschaft
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ruetgerswerke Aktiengesellschaft filed Critical Ruetgerswerke Aktiengesellschaft
Application granted granted Critical
Publication of ATE4503T1 publication Critical patent/ATE4503T1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D207/00—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom
    • C07D207/02—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D207/18—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having one double bond between ring members or between a ring member and a non-ring member
    • C07D207/22—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having one double bond between ring members or between a ring member and a non-ring member with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D207/24—Oxygen or sulfur atoms
    • C07D207/26—2-Pyrrolidones
    • C07D207/263—2-Pyrrolidones with only hydrogen atoms or radicals containing only hydrogen and carbon atoms directly attached to other ring carbon atoms
    • C07D207/27—2-Pyrrolidones with only hydrogen atoms or radicals containing only hydrogen and carbon atoms directly attached to other ring carbon atoms with substituted hydrocarbon radicals directly attached to the ring nitrogen atom
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P25/00—Drugs for disorders of the nervous system
    • A61P25/18—Antipsychotics, i.e. neuroleptics; Drugs for mania or schizophrenia

Abstract

An improved process for the preparation of acyl hydrazides of the formula <IMAGE> I wherein A and B individually are a group of the formula <IMAGE> wherein R1 is selected from the group consisting of hydrogen and alkyl of 1 to 4 carbon atoms, x is 0 or 1 and R2 and R3 are individually selected from the group consisting of hydrogen and alkyl of 1 to 4 carbon atoms and n and m are individually 0, 1,2 or 3 by reacting a compound of the formula <IMAGE> II with a hydrazide of the formula <IMAGE> III the improvement comprising effecting the reaction in the presence of at least one catalyst of the formula R'-OMe wherein R' is selected from the group consisting of hydrogen and alkyl of 1 to 4 carbon atoms and Me is an alkali metal.
AT80200288T 1980-02-23 1980-03-28 PROCESS FOR THE PREPARATION OF SUBSTITUTED ACETIC HYDRAZIDE. ATE4503T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19803006807 DE3006807A1 (en) 1980-02-23 1980-02-23 METHOD FOR PRODUCING SUBSTITUTED ACETIC ACID HYDRAZIDS
EP80200288A EP0034666B1 (en) 1980-02-23 1980-03-28 Process for preparing substituted acetyhydrazides

Publications (1)

Publication Number Publication Date
ATE4503T1 true ATE4503T1 (en) 1983-09-15

Family

ID=6095372

Family Applications (1)

Application Number Title Priority Date Filing Date
AT80200288T ATE4503T1 (en) 1980-02-23 1980-03-28 PROCESS FOR THE PREPARATION OF SUBSTITUTED ACETIC HYDRAZIDE.

Country Status (6)

Country Link
US (1) US4332728A (en)
EP (1) EP0034666B1 (en)
JP (1) JPS56133262A (en)
AT (1) ATE4503T1 (en)
CA (1) CA1132569A (en)
DE (2) DE3006807A1 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3417114A (en) * 1965-07-20 1968-12-17 C P Hall Company Of Illinois Method of making amides from moisture and acid-gas containing esters
US3567778A (en) * 1968-06-17 1971-03-02 Olin Corp Process for preparing nitrosalicyl-hydrazides
DE2440633C3 (en) * 1974-08-24 1980-10-30 Chemisches Laboratorium Fritzwalter Lange Gmbh & Co Kg, 8035 Gauting 1,2-bis- (2-oxo-pyrrolidine-1) acetic acid hydrazide, process for its preparation and medicinal products containing this compound
CA1065875A (en) * 1976-02-20 1979-11-06 Chemisches Laboratorium Fritz-Walter Lange G.M.B.H. And Co. Kg (2-oxo-pyrrolidene-1) acetic hydrazides and process for preparation
US4069336A (en) * 1976-02-25 1978-01-17 Chemisches Laboratorium Fritz-Walter Lange Gmbh & Co Kg (2-oxo-pyrrolidines)-acetic hydrazides
DE2745907A1 (en) * 1977-10-12 1979-04-26 Chemisches Lab Fritz Walter La (2-OXO-PYRROLIDIN-1) - AND (2-OXO-PIPERIDIN-1) -CARBONIC ACID DERIVATIVES, THE PROCESS FOR THEIR PRODUCTION, THEIR FURTHER PROCESSING AND THE PHARMACEUTICAL PREPARATIONS CONTAINING THEM

Also Published As

Publication number Publication date
EP0034666B1 (en) 1983-08-24
US4332728A (en) 1982-06-01
DE3006807A1 (en) 1981-09-10
EP0034666A1 (en) 1981-09-02
DE3064614D1 (en) 1983-09-29
CA1132569A (en) 1982-09-28
JPS56133262A (en) 1981-10-19

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Legal Events

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